Week 15~Wednesday
Flashcard
•
Mathematics
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What does the inequality x ≤ -2 represent on a number line?
Back
It represents all numbers less than or equal to -2, including -2 itself.
2.
FLASHCARD QUESTION
Front
How do you solve the inequality -2.1x + 2.9 > 15.5?
Back
First, subtract 2.9 from both sides: -2.1x > 12.6. Then, divide by -2.1 (remember to flip the inequality): x < -6.
3.
FLASHCARD QUESTION
Front
What is a table of values in relation to a graph?
Back
A table of values lists pairs of x and y coordinates that can be plotted on a graph to represent a relationship.
4.
FLASHCARD QUESTION
Front
What does it mean for y to be proportional to x?
Back
It means that as x changes, y changes at a constant rate, which is the unit rate.
5.
FLASHCARD QUESTION
Front
How do you calculate the area of a rectangle?
Back
Area = length × width.
6.
FLASHCARD QUESTION
Front
If Jim wants to carpet four identical rooms each measuring 14 ft by 20.5 ft, how do you find the total area?
Back
Total area = 4 × (14 ft × 20.5 ft) = 4 × 287 sq. ft = 1148 sq. ft.
7.
FLASHCARD QUESTION
Front
How many rolls of carpet does Jim need if each roll covers 200 sq. ft.?
Back
Total rolls needed = Total area / Area covered by one roll = 1148 sq. ft. / 200 sq. ft. = 5.74, rounded up to 6 rolls.
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